National Stock Number
4730-00-423-8591
National Stock Number (NSN) 4730-00-423-8591, or NIIN 004238591, (sleeve,compression,tube-hose fit) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Aug 17, 2017. There has been one contract issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7LX15D0162, SPE7LX15D0162. The total value of the awarded contracts has been US$ 40.50.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 19, 2011, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 18026. [A RING-SHAPED ITEM WHOSE OUTER SURFACE IS SO SHAPED AS TO FORM A SEAT FOR THE COUPLING NUT AND THE FITTING BETWEEN WHICH IT IS ASSEMBLED. IT IS DESIGNED TO BE SLIPPED OVER TUBING OR HOSE SO THAT TIGHTENING OF THE COUPLING NUT TO THE FITTING COMPRESSES THE SLEEVE AGAINST THE CIRCUMFERENCE OF THE TUBING OR HOSE THEREBY EFFECTING A TIGHT SEAL BETWEEN THE TUBING, OR HOSE FITTING AND COUPLING NUT.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730004238591 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.